Water-cooling pump for internal-combustion engines



F. F. KRAUSE. WAKE COOLING PUMP FOR INTERNAL COMBUSTFOEJ ENGINES. APPLICATION FILED .iULY 14, E919, 9 59 3 9 Patented Nova 16, 1920.

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WATER COOLING PUMP FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED JULY l4, I9I9. I

Patented Nov. 16, 1920.

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panacea Specification bf Letters Patent. Patented Norflifi, i926 7 Application filed Jul it, me. Serial No. noses.

To all whom it may concern:

Be it known that l, FRANK F. K natrsn, acitizen of the United States, residing at Mansfield, in the county or" Douglas and.

State of Washington, have invented certain new and useful Improvements in Water- Cooling Pumps for internal-Combustion Engines, of which the following is a specification;

This invention relates to a pump or 1mpelling device particularly designed for use in the fluid circulating system, such as the cooling system oi internal combustion engines, and an object of the invention is to provide means whereby air may be drawn into and mixed with the coollng liquldozt the cooling system of an internal combus-.

tion engine or analogous structure Another ob ect of the invention is to provide a device as specified, for facilitating thev cooling of an internal combustion eng ne or analogous structure, means compris ng a propeller rotatable by the fan beltof the power plant of a motor vehicle or otherwise suitably rotatable, the supporting shaft of which is hollow, the said hollow opemng out through openin means placed in the propeller, which blades are positioned in the path of the cooling fluid and impel or agitate the cooling fluid to increase its actlve movement, and which impelling ofthe fluid will have a tendency to create a suction through the hollow supporting shaft. and blades of the propeller for drawing 8 11 therethrough, for intermingling or mixing with the water and consequently cooling the same.

A further object of the invention is to provide a valve structure for cutting ofi the supply of air to and through the hollow supporting shaft of the propeller which is connected to the propelling shaft by a flexible hose structure to eliminate the transfer of vibration from the shaft to the valve during operation of the device.

Other objects of the invention will a pear from the following detailed descmption taken in connection with the accompanying drawings, forming a part of this specification, and in which drawings: I

Figure 1 is a side elevation of the improved puznp showing the same applied to a fragment of the power plant of a motor vehicle.

Fig. 2 is a longitudinal section through the pump structure,

' 7 i 3 is a cross section through the structure taken .on the line 3-3 of Big. 2, -and on an enlarged scale.

Fig. 4- is a section through the propeller taken on the line 4-4 of Fig, 3.

Fig; 5"is a detail section illustrating the inlet of the air supplying hose or pipe, and

Fig. 6 is a detail section through the valve for controlling the supplying of air to. the

hollow propeller carrying shaft. Referring more particularly to the drawings, wherein like characters indicate like and corresponding parts throughout the several views, A. indicates an ordinary internal combustion engine of the. power plant of the motor vehicle, and while the improved pump or no elling structure is particularly designe for use in connection with'motor veh cles, it is applicable for use in connection with stationary internal combustion engines or several other analogous structures, and it is to be understood that the device may be used with any structure, with which it will perform its proper function without departing from the splrit off-this. invention.

The radiator B of the cooling system of the internal combustion engine A is of the usual construction and the lower or outlet end of the said radiator has communication with the water jacket-of the engine through of, which carries arelatively long bearing 13, projecting into the pipe 10 and a secon bearin 14 projecting outwardly out of the pipe w lzich carries a packing washer structure 15-for forming a fluid tight joint about the hollow shaft 16. The hollow shaft 16 and has comis rotatabl supported by the bearing 13 and v has a col an 17 thereon, for en agement against the inner end of the bearing 13 to revent longitudinal movement of the shaft. lhe shaft 16 is hollow, being provided with an axial bore 18, which open's out throu h ways 19 in plane-of the ropellers 20. T e propellers 20 are forme upon or mounted upon the end of the hollow shaft 1o andis positioned within the pipe 10 suflicient distance beyond the communication between the pipe and the branch 11 to prevent back action of the coolin' fluid intor'the'pipe 11.

The ways 19 in t e propeller blade open at the following facesof the'blade so that the cooling fluid agitated or impelled by rotation of the propeller will create a suction through the hollow shaft 16. An elbow 21 is connected to the outer end of the hollow shaft 16 and rotatably receives said outer end of the shaft, which elbow is braced and supported by a suitable bracing structure 22 A pipe il 'communicates with the elbow 21. However, a flexible hose may be employed in lieu of the pipe. This flexilole conduit 23 has communication with the casing :24: of a valve structure T he valve structure 25 is supported in any suitable manner, upon the engine structure A and the slidable'gate 26 thencel is normally urged into an open position by means of a spiral spring 27. A flexible shaft or wire 28 is connector to'the gate and is adapted to extend to the dash of the motor vehicle it may be conor to any 0 oer place wher veniently operated for controlling the pasof air through the valve casing 24: and consequently through the conduit 23. A second conduit 29 communicates with the inlet end of the valve casing or housing 24: and it also communicates with the interior of a substantially inverted conical guard 30 formed by a plate 31, which is preferably soldered or otherwise suitably attached to. the radiator structure at the top thereof,

I to permit relatively cool air to be sucked into and through the conduit 29 and through the valve structure 25, the conduit 23 to be drawn through the propeller 2O and intermingledwith the cooling fluid in the pipe 10.

The hollow shaft 16 of the propeller structure has a pulley 32 mounted thereon and preierably connected to the shaft for rotate ing it by means oi a set screw 33, thereby permitting limiting adjustment of the pulley longitudinally upon the shaft to accommodate various types of motor vehicles, or

ppwer plants. This pulley 32 is adapted to have rotation imparted thereto from the usual tan mechanism 34-, of the power plant or motor A,through the medium of a belt 3 However, it is to be understood thatthe pulley 32 may be operatively connected to any desired propelling means for rotating it and conse uently rotating the shaft 16 and the propel or structure 20.

Changes in details may be made without departing from the spirit of this invention,

but; ll claim: ,6

l. The combinatlon with the cooling systern of an internal combustion engine, of .a

propeller rotatable in the cooling liquid to circulate the same, and means for conductair the liquid ad acent the bladeso'l proreler.

2, "the combination with a fluid conduit,

of a fluid-impelling device comprisin a hollow shalt extending into said condult and having atmospherical communication,

a propeller within said conduit mounted on c said shaft and having ways therein communicating with the bore of the shaft and opening out through the blades of the propelle'rinto the conduit whereby air will be drawn into the conduit upon rotation of the propeller and means upon the shaft operable to rotate the shaft and propeller.

3. The combination with a fluid conduit, of a fluid-impelling device comprising a hollow shalt extending into said conduit and having atmospherical communication, a propeller within said conduit mounted on said shalt and having ways therein communicating with the bore of the shaft and opening out throughthe blades of propeller into the conduit whereby air will be drawn into the conduit upon rotation of the propeller and means upon the shaft operable to rotate the shaft and propeller, the ways in said propeller blades opening at the following faces thereof whereby asuction will be created through the shaft durin rotation of the propeller.

l. lheconibination with a fluid conduit, of a fluiddmpelling device comprising a hol- .low shalt extending into said conduit and having atmospherical. communication, a propeller within said conduit, mounted on a said shaft and having ways therein communicating with. the bore-of the shaft and opening out through the blades of the propeller into'the conduit whereby air will be drawn into the conduit upon rotation of the oo propeller and means upon the shaft oper able to rotate the shaft and propeller, the ways in said propeller blades 0 ening at the following faces thereof where y a suction. will be created through the shaft" during roloo tation of the propeller, and a valve for con trolling the inlet of air into said hollow shaft.

5. The combination with the water cooling chamber 011? an internal combustion en- 11o glue, and the water supply pipe therefor, of a pipe having communication with said supply pipe and with the interior of said jacket,

a hollow shalt rotatably supported by and extending into said pipe, a propeller within said second mentioned pipe, mounted on said shaft and having ways therein communicat ing with the bore: of the hollow shaft and opening out through the blade into the conduit for creating a suction through the lee blades and hollow shafts upon rotation of the propeller to draw air into the pipe, said hollow shalt projecting out of said pipe, and means upon the outer end of the shaft operable to revolve said shaft and propeller.

6. The combination with the water cooling chamber oi? an internal combustion engine, and the water supply pipe therefor, of a pipe having communication with said supply pipe andqwith the interior of said jacket, 1%

a hollow shaft rotatably' supported by and 4 extending into said pipe, a propeller within said second mentioned pipe, mounted on said shaft and having ways therein communicating with the bore of the hollow shaft and opening out through the blade into the conduit for creating a suction through the-blades and hollow shafts upon rotation of the propeller to draw air into the pipe, said hollow shaft projecting out of said pipe, means upon the outer end of the shaft operable to revolve said shaft and propeller, a conduit connected to the outer end of said hollow shaft, a valve interposed in said conduit for controlling the passage of air through the conduit and said hollow shaft.

7. The combination with an internal combustion engine having a water cooling chamber, and a'water supply pipe therefor, of a pipe attached to the engine and having communication with the water cooling chamber and supply pipe, a fl'uid-impelling device, including a hollow shaft rotatably supported by said pipe and extending thereinto, a propeller within said second mentioned pipe, mounted on said shaft and rotatable about an axis parallel with the axis of the pipe,

and means adjustably mounted upon the outer end of thesaid shaft and operable to rotate the shaft and propeller.

- 8. The combination with an internal combustion engine having a water cooling chamber, a water supply pipe therefor, of a pipe attached to the engine and having communication with the water cooling chamber and supply pipe, a fluid-impelling device including a hollow shaft rotatably supported by said ,pipe and extending thereinto, a propeller Within said second mentioned pipe, mounted on said shaft and rotatable about an axis parallel with the axis of the pipe, means adjustably mounted upon the outer end of the said shaft and operable to rotate the shaft and propeller, said shaft being-hollow and having atmospherical communication, the blades of said propellers provided with wayshaving communication with the bore of the hollow shaft and opening at the following faces of the blade for creating an air suction through the shaft and propeller blade upon rotation thereof.

FRANK F. KRAUSE. 

